Hi, I with mu physics extra credit please.

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    Hi Physics
In summary, a teenager is able to accelerate a small hand-driven merry-go-round from rest to a frequency of 15 rpm in 10.0 s by pushing tangentially. The merry-go-round is a uniform disk with a radius of 2.5 m and a mass of 760 kg, with two children (each weighing 25 kg) sitting on the edge. The task is to calculate the torque needed to produce this acceleration, without considering frictional torque. The first step is to calculate the angular acceleration in radians per second squared.
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teachmeplease
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A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume the merry-go-round is a uniform disk of radius 2.5 m and has a mass of 760 kg, and two children (each with a mass of 25 kg) sit opposite each other on the edge. Calculate the torque required to produce the acceleration, neglecting frictional torque.
 
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Welcome to PF!

Hi teachmeplease ! Welcome to PF! :wink:
teachmeplease said:
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume the merry-go-round is a uniform disk of radius 2.5 m and has a mass of 760 kg, and two children (each with a mass of 25 kg) sit opposite each other on the edge. Calculate the torque required to produce the acceleration, neglecting frictional torque.

ok … start by calculating the angular acceleration (in radians per s2) :smile:
 
  • #3
Thanks for the help I appreciate it
 

1. Can you explain the concept of physics extra credit?

Physics extra credit refers to additional assignments or tasks that students can complete in addition to their regular coursework in order to earn extra points towards their grade. These tasks are typically related to the subject of physics and require a deeper understanding of the concepts taught in class.

2. How can extra credit benefit my grade in physics?

Extra credit can benefit your grade in physics by providing an opportunity to earn additional points, which can help improve your overall grade. It can also demonstrate your commitment and understanding of the subject, which may be taken into consideration by your instructor when grading.

3. What types of tasks or assignments are typically offered for physics extra credit?

The types of tasks or assignments offered for physics extra credit can vary, but they often involve additional research, problem-solving, or experimental work related to the topics covered in class. Examples may include writing a paper on a specific physics concept, conducting a physics experiment, or solving advanced equations.

4. How can I ensure that I am completing the extra credit assignments correctly?

It is important to follow the instructions provided by your instructor when completing extra credit assignments. Make sure to read the guidelines carefully and ask for clarification if needed. It can also be helpful to review the material covered in class and do additional research to ensure a thorough understanding of the topic.

5. Is it necessary to complete extra credit for a good grade in physics?

No, completing extra credit is not necessary for a good grade in physics. It is intended as an opportunity for students to challenge themselves and potentially earn extra points, but it is not a requirement for success in the course. It is important to focus on understanding the material and completing regular coursework to achieve a good grade in physics.

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